LXR linux/drivers/net/ethernet/qualcomm/rmnet/rmnet

   1/* Copyright (c) 2013-2014, 2016-2018 The Linux Foundation. All rights reserved.
   2 *
   3 * This program is free software; you can redistribute it and/or modify
   4 * it under the terms of the GNU General Public License version 2 and
   5 * only version 2 as published by the Free Software Foundation.
   6 *
   7 * This program is distributed in the hope that it will be useful,
   8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 * GNU General Public License for more details.
  11 *
  12 * RMNET Data configuration engine
  13 *
  14 */
  15
  16#include <linux/skbuff.h>
  17#include <net/gro_cells.h>
  18
  19#ifndef _RMNET_CONFIG_H_
  20#define _RMNET_CONFIG_H_
  21
  22#define RMNET_MAX_LOGICAL_EP 255
  23
  24struct rmnet_endpoint {
  25        u8 mux_id;
  26        struct net_device *egress_dev;
  27        struct hlist_node hlnode;
  28};
  29
  30/* One instance of this structure is instantiated for each real_dev associated
  31 * with rmnet.
  32 */
  33struct rmnet_port {
  34        struct net_device *dev;
  35        u32 data_format;
  36        u8 nr_rmnet_devs;
  37        u8 rmnet_mode;
  38        struct hlist_head muxed_ep[RMNET_MAX_LOGICAL_EP];
  39        struct net_device *bridge_ep;
  40};
  41
  42extern struct rtnl_link_ops rmnet_link_ops;
  43
  44struct rmnet_vnd_stats {
  45        u64 rx_pkts;
  46        u64 rx_bytes;
  47        u64 tx_pkts;
  48        u64 tx_bytes;
  49        u32 tx_drops;
  50};
  51
  52struct rmnet_pcpu_stats {
  53        struct rmnet_vnd_stats stats;
  54        struct u64_stats_sync syncp;
  55};
  56
  57struct rmnet_priv_stats {
  58        u64 csum_ok;
  59        u64 csum_valid_unset;
  60        u64 csum_validation_failed;
  61        u64 csum_err_bad_buffer;
  62        u64 csum_err_invalid_ip_version;
  63        u64 csum_err_invalid_transport;
  64        u64 csum_fragmented_pkt;
  65        u64 csum_skipped;
  66        u64 csum_sw;
  67};
  68
  69struct rmnet_priv {
  70        u8 mux_id;
  71        struct net_device *real_dev;
  72        struct rmnet_pcpu_stats __percpu *pcpu_stats;
  73        struct gro_cells gro_cells;
  74        struct rmnet_priv_stats stats;
  75};
  76
  77struct rmnet_port *rmnet_get_port(struct net_device *real_dev);
  78struct rmnet_endpoint *rmnet_get_endpoint(struct rmnet_port *port, u8 mux_id);
  79int rmnet_add_bridge(struct net_device *rmnet_dev,
  80                     struct net_device *slave_dev,
  81                     struct netlink_ext_ack *extack);
  82int rmnet_del_bridge(struct net_device *rmnet_dev,
  83                     struct net_device *slave_dev);
  84#endif /* _RMNET_CONFIG_H_ */
  85